Stove



UNITED STATEs' PATENT OFFICE.

JAMES LAMB,OF DETROIT, MICHIGAN.

S T O V E SPECIFICATION forming part of Letters Patent No. 495,555,dated April 18, 1893.

Application filed March 21, 1892- Serial No. 425,663. (No model.)

To all whom it may concern.-

Be it known that I, JAMES LAMB, a citizen of the United States, residingat Detroit, Wayne county, and State of Michigan, have invented certainnew and useful Improvements in Stoves, fully set forth in the followingdescription and represented in the accompanying drawings.

My invention relates to heating stoves, ranges, 650., and the object Ihave in view is to provide ameans by which heated air may be conductedabout the center portion and above the fire, whereby the arisinghydrogen gases from the burning fuel proceeding from combustion may bethoroughly mingled, and a more perfect combustion obtained thanheretofore in other construction of stoves now in use.

My invention consists of an annular chamber arranged in close proximityto the mouth of the feeder, or forming a part of the same, and providedwith one or more air supply pipes constructed to receive air from theroom through the walls of the stove, or air-chambers embodied therein.The annular chamber is provided with jets for discharging the air towardthe burning fuel, and such other details of construction and operationhereinafter described and set forth in the claims.

In the drawings Figure 1. is a front elevation of a heating stove,partially in section, embodying my invention, and illustrating the airsupply pipes arranged to receive air through apertures in the micaframes in the doors and with a hot-air flue in the rear of thefire-chamber. Fig. 2. is a top plan view of Fig. 1 taken at the line XX.

Like letters and figures of reference represent corresponding parts ofthe drawings.

A. represents a magazine heating stove of an ordinary pattern, withinwhich is arranged my improvement. B, forms the mouth of the magazine 0.,the lower part of which is curved outward, and an annular ring D. of alarger diameter is constructed to fit over the same so as to form itsflange joints with the magazine at 3 and 4, thereby forming theairchamber E. therein. To the outer wall of the chamber E. are cast orattached the U shaped supply pipes, F. and F'. The plates 5 and 5' areclosely fitted and secured to the upper portions of said pipes to serveto complete them, the outer ends of which pipes are so mounted as tohave connection through the wall of the stove, or as shown resting up onthe fire-pot G. The mouths of the pipes F. and F'. are arranged to makeconnection with the inner side of the mica doors H. when closed, inwhich is provided an aperture or opening 6, through which air mayreadily enter to the chamber E.

F. is a third pipe similarly constructed and arranged with relation tothe fire-pot G. and chamber E, but extending rearward and downward, andmakes connection with a hot-air flue I, located between the ascendingflue J and the descending flue K.

7 are jet holes drilled through the mouth of the magazine about itslower inner portion, and 8 are similar jets through the outer wall and 9are similar jets through the wall of the U shaped pipes.

L is the upper portion of the magazine.

M is a combustion chamber, and N is the ash-pit, and O is the grate.

The operation of the foregoing is as follows: Assuming that a coal fireis in process of combustion in the fire-chamber G, receiving its airfrom beneath the grate O and the fire supplied with coal through themagazine 0 and L to keep up combustion; the rising gases from theburning fuel ascend into the chamber M, and in doing so it is necessarythat they should pass the mouth of the magazine O and the chamber E andpipes F. Air is admitted through the opening 6 to the pipes F and F' andfrom the hotair flue I into the pipe F and thence into the air chamberE, through which passage the air is intensely heated and passes from thejets 7, 8, and 9. As the air issues from these points in passing to thechamber M, it meets with the ascending gases from the fire-pot andcauses them to become ignited by furnishing an additional supply ofoxygen, thereby effecting a more perfect combustion, and consuming thearising gases and effecting a saving of fuel, and increase of heat.

In illustrating my invention I have shown my improved gas burnerconstructed in part from the walls of the feeder, and it may be readilyseen the gist of my invention lies in a means which is calculated todistribute heated airin jets about the center portions of the firechamber above the fire, with a view to more efiectually create a perfectcombustion. It is well understood that the said gas burner may be formedindependent of the magazine proper, and in any convenient form or shapeof suitable metals calculated to stand the action of combustion, whileairis passing through them, and that the means of connecting with airexternal of the stove may be effected through any convenient wall of thestove other than through apertures in the mica doorframe, or hot-airfiues in the stove. It is also observed that it is not necessary that myimproved gas burner should be combined with a magazine as the coal maybe supplied through the fire-door of the stove, by which means the sameresult may be obtained.

Although I have described a method of putting the several parts togetherto construct the device, any means of construction known to the art isfully contemplated.

Having thus described my invention, What I claim as new is 1. Incombination with a fire chamber, an exit flue and a magazine, of anannular air chamber formed about the mouth of the magazine, and providedwith air pipes arranged to receive air from outside the "stove, and anair pipe having connection with a hot-air flue, the chamber furnishedwith apertures to discharge heated air to the products of combustion, asand for the purpose set forth.

2. In combination with a fire chamber, a magazine and an exit flue, ofan annular chamber constructed in sections about the mouth of themagazine, and having an air pipe or pipes connecting with the suitableapertures in the door frame of the stove, and a pipe or pipes receivingtheir air from a hot-air flue; and communicating with the annularchamber the said chamber and pipes provided with apertures to supply airto the ascending gases from the fire, substantially as and for thepurpose set forth.

In testimony whereof I have set my hand, this 18th day of March, A. D.1892,in the presence of two subscribing witnesses.

JAMES LAMB.

Witnesses:

O. R. SAVILLE, JOHN F. GOODFELLOW.

